Climate for Station: Midway is Henderson Fld Ap, Midway Atoll, Midway Islands [United States}

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Station Statistics

10-Year Trend

High: +0.21 °C/decade

Low: -0.01 °C/decade

Rain: +0.64 mm/decade

25-Year Trend

High: +0.82 °C/decade

Low: -0.48 °C/decade

Rain: -0.07 mm/decade

50-Year Trend

High: -0.02 °C/decade

Low: +0.22 °C/decade

Rain: -0.13 mm/decade

All-Time Trend

High: +0.06 °C/decade

Low: +0.23 °C/decade

Rain: -0.13 mm/decade

Percentage Above-Average Days

Last 12 Months: 49.9%

This Year: 50.0%

Precipitation Concentration Index (PCI) ℹ️

Last 12 Months: 13.2

Historical Average: 13.6

Percentile Rank of Last 12 Months ℹ️

High: 56^th percentile

Low: 79^th percentile

Rain: 40^th percentile

Change in Variance ℹ️

High: -0.9%

Low: -6.4%

Intraday: -40.7%

Data Coverage

94.9%

First Year of Data

1945

	Max High	Avg High	Min High	Max Avg	Avg Avg	Min Avg	Max Low	Avg Low	Min Low	Max Precipitation	Avg Precipitation	Max Snow	Avg Snow
Record	35.5 °C	—	14.4 °C	29.6 °C	—	12.9 °C	30.0 °C	—	9.4 °C	186.2 mm	—	1778.0 mm	—
January	28.0 °C	21.1 °C	15.4 °C	24.3 °C	19.3 °C	13.3 °C	23.5 °C	17.4 °C	9.4 °C	128.0 mm	3.4 mm	0.0 mm	0.0 mm
February	27.2 °C	20.8 °C	15.0 °C	23.9 °C	18.9 °C	14.0 °C	23.3 °C	17.0 °C	10.0 °C	77.5 mm	3.3 mm	0.0 mm	0.0 mm
March	27.2 °C	21.2 °C	14.4 °C	24.0 °C	19.2 °C	12.9 °C	22.7 °C	17.6 °C	10.6 °C	97.8 mm	2.3 mm	0.0 mm	0.0 mm
April	27.8 °C	22.2 °C	15.6 °C	24.6 °C	20.1 °C	13.2 °C	23.9 °C	18.5 °C	11.7 °C	127.0 mm	1.8 mm	0.0 mm	0.0 mm
May	30.6 °C	23.7 °C	17.5 °C	26.8 °C	21.7 °C	16.8 °C	25.0 °C	20.2 °C	12.8 °C	172.7 mm	1.8 mm	0.0 mm	0.0 mm
June	31.7 °C	26.5 °C	19.4 °C	28.1 °C	24.4 °C	18.8 °C	27.2 °C	23.0 °C	16.1 °C	186.2 mm	1.8 mm	1778.0 mm	1.4 mm
July	33.3 °C	27.8 °C	23.6 °C	29.3 °C	25.8 °C	22.3 °C	27.2 °C	24.2 °C	17.2 °C	97.0 mm	2.2 mm	0.0 mm	0.0 mm
August	35.5 °C	28.3 °C	23.9 °C	29.6 °C	26.3 °C	22.4 °C	30.0 °C	24.7 °C	17.8 °C	115.6 mm	3.0 mm	0.0 mm	0.0 mm
September	33.3 °C	28.2 °C	23.0 °C	29.3 °C	26.2 °C	21.6 °C	27.9 °C	24.5 °C	17.8 °C	94.7 mm	2.7 mm	0.0 mm	0.0 mm
October	32.7 °C	26.5 °C	20.0 °C	29.0 °C	24.6 °C	19.0 °C	27.2 °C	23.0 °C	15.0 °C	173.5 mm	2.4 mm	0.0 mm	0.0 mm
November	33.8 °C	24.4 °C	17.2 °C	26.5 °C	22.7 °C	15.3 °C	25.6 °C	21.1 °C	12.8 °C	157.2 mm	3.1 mm	0.0 mm	0.0 mm
December	27.8 °C	22.6 °C	15.9 °C	25.4 °C	20.9 °C	15.2 °C	24.2 °C	19.0 °C	10.6 °C	124.5 mm	3.1 mm	0.0 mm	0.0 mm

Max Temperature this Year | 1 of 4

Max Temperature 12-Month MA | 1 of 4

Average Max Temperature Throughout Year | 1 of 3